INSTALLATION TIP

The Importance of Clean, Quality Oil in Timing Chain Systems

Using the wrong oil is a common symptom that causes a vehicle’s timing chain to wear even quicker.Learn how dirty or incorrect oil affects timing chains, hydraulic tensioners, and VVT phasers—and why the specified oil and service interval matter.

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INSTALLATION TIP

Timing Chain System Frequently Asked Questions

Get answers to common timing-chain questions, including replacement timing, warning signs, noise causes, oil requirements, and related repairs.

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2537

Engine Timing Crankshaft Gear

Engine Timing Crankshaft GearStock Replacement

Along with the timing chain, tensioners, and guides, sprockets are an integral component within the timing system. Timing gears and sprockets are available as part of complete timing kits as well as for individual purchase and installation.

  • Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain gears offer reliability and dependability for engine rebuilds and typical replacement jobs.
  • Helical tooth form for quiet operation and precision machined bore for true fit.
  • CAD designed and manufactured using premium materials to ensure optimal performance.
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance.
  • Refer to our online catalog for detailed application-specific information.

Not included: Chain, Thrust Bearing

227 compatible vehicles

MakeModelYearEngine
American MotorsConcord1980-1982L4 2.5L
American MotorsEagle1981-1983L4 2.5L
American MotorsSpirit1980-1982L4 2.5L
BuickApollo1973-1975L6 4.1L
BuickCentury1982-1990L4 2.5L
BuickSkylark1968-1971L6 4.1L
BuickSkylark1980-1989L4 2.5L
BuickSomerset1986-1987L4 2.5L
BuickSomerset Regal1985L4 2.5L
BuickSpecial1968-1969L6 4.1L
Make / ModelYear / Engine
American MotorsConcord1980-1982L4 2.5L
American MotorsEagle1981-1983L4 2.5L
American MotorsSpirit1980-1982L4 2.5L
BuickApollo1973-1975L6 4.1L
BuickCentury1982-1990L4 2.5L
BuickSkylark1968-1971L6 4.1L
BuickSkylark1980-1989L4 2.5L
BuickSomerset1986-1987L4 2.5L
BuickSomerset Regal1985L4 2.5L
BuickSpecial1968-1969L6 4.1L

Need help getting a part?

Our support team can confirm fitment, availability, and the nearest distributor.